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a) cos3x<br />

b) 2sen(3x+π)<br />

c) sen(x)+x<br />

d) tg(|x|)<br />

a ≤ π<br />

d) arcsen(a) sabendo que tg(a) = b/c e 0 ≤<br />

a ≤ π/2<br />

e) cotg(a) sabendo que sen(a) = b/c e 0 ≤<br />

a ≤ π/2<br />

17 — Calcule<br />

a) sen(a) sabendo que cos(a) = b e 0 ≤ a ≤<br />

π/2<br />

b) sen(a) sabendoque tg(a) = b/c e 0 ≤ a ≤<br />

π/2<br />

c) sen(a) sabendo que tg(a) = b/c e pi/2 ≤<br />

18 — Calcule<br />

a) arcsen(−√<br />

3<br />

2 )<br />

b) arctan(1)−arctan(−1)<br />

c) arcsen(cos(2x)) 0 ≤ x ≤ π/2<br />

d) arcsen(cos(2x)) π/2 ≤ x ≤ 3π/2<br />

3

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